1. 3/20/09
Have out:
pencil, GP NB
Bell Work
Complete as many of the squares on the worksheet
as you can.
Part 1 only

2. add to your notes... Square roots: Complete PART 2 on the worksheet
a square root is the inverse of a square.
once you use the square root it “disappears”
Complete PART 2 on the worksheet

3. add to your notes Simplifying Square Roots
Note: whenever you are asked for an exact answer or simplified answer this is what you do
Find a perfect square that divides into the number (use the chart)
Rewrite the square root as a product
Square root what you can
Repeat as necessary
Divides by 9
(This is read 3 root 5)

4. Example 1:
Write each of the following square roots in simplest form.

5. another way Example 2: 18 2 9 3 3 12 3 4 2 2 A) Make a factor tree.
Identify and circle the pairs. 2 9
Cross out the pairs when you take their square root. 3 3
Leave non-paired numbers under the radical sign. B) 12 3 4 2 2

6. Simplify the following
Is there a faster way? 80
Find the largest perfect square! C) 10 8 80 5 2 2 4 16 5 2 2
Example 3:
Simplify the following A) B) C) D)

7. Example 4: Simplify

8. Part 3:
Simplifying with variables:
= _____
We will complete part 3 now.
= _____
= _____ = _____
= _____
= _____
= _____ = _____
= _____= _____
= _____
= _____
= _____= _____

9. Example 5:
Simplify

10. Example 6:
Part 4: b) c) a)

11. Work on
Radicals Part 1 WS